Locking device for water-tight doors



J. L. SILVERMAN AND I. W. SHlELDS.

LOCKING DEVICE FOR WATER TIGHT DOORS.

T APPLICATION FILED 061218, 1920.

Patented May 16,1922.. v

UNETEQ TfilTESa JOSEPH L. SILVERMAN, 0F BROOKLYN, AN D JOHN W. SHIELDS, OF WEST BRIGHTON,

NEW

YORK.

LOCKING DEVICE FOR WATER-TIGHT DOORS.

iniesoe.

Application filed October 18, 1920.

T 0 all whom it may concern;

Be it known that we, JOSEPH L. SILVER- MAN and JoHN' W. SHlnLDs, residing, respectively, at Brooklyn and West Brighton, in the counties of Kings and Richmond and State of New York, have invented certain new and useful Improvements in a Locking Device for ater-Tight Doors, of which the following is a specification.

This invention relates to improvements in water tight doors or hatches, and one of the objects of the invention is to Provide a new and improved hatch or the like, adapted for use upon shipboard, or in other places where it is desired to close a port or aperture se curely against the entrance of water.

Another object of the invention is to provide improved means for operating a hatch of the above character, whereby the locking means may be conveniently manipulated from. either side thereof, and. which is of such construction as to hold the edges of the hatch securely against the surface of the surrounding Wall of the port or aperture to be closed by said hatch.

Other objects and aims of the invention,

more or less specific than those referred to above, will be in part obvious and in part pointed out in the course of the following description of the elements, combinations, arrangements of parts and applications of principles, constituting the invention; and the scope of protection contemplated will be indicated in the appended claim.

In the accompanying drawing, wherein we have illustrated a preferred form of embodiment of our invention:

Figure 1 is a plan view of our improved hatch.

Figure 2 is a longitudinal sectional view taken on the line 22 of Figure 1; and

Figure 3 is a sectional view upon an enlarged scale, of that portion of the hatch adjacent the operating means, showing the parts in a position slightly different from that of Figure 2.

Referring now to the drawing, wherein similar reference characters refer to similar parts throughout the views thereof, the reference numeral 1 indicates the wall which surrounds the aperture to be closed by our improved hatch, said wall having fastened thereto upon its under surface a ring 2, the

Specification of Letters Patent.

Patented May 16, 1922.

Serial No. 417,610.

aperture of which ring. registers with the aperture 1n the wall 1. The ring 2, which is preferably of metal, is provided with a downwardly extending lip 4. The edges of the wall in which the aperture to be closed is located, are preferably beveled off slightly as shown at 5.

The door or hatch comprises a plate 6, which corresponds in shape to that of the aperture to be closed, and'is slightly larger than said aperture so as to underlie the same; the edge portions of said plate being provided with a ring 7, which extends entirely thereabout, and said ring being provided with an undercut aperture 8, which receives a cushion or sealing ring 9, the latter being preferably composed of a compressible material, such as rubber. The aperture 8 and the cushion member 9 are so disposed that the latter when thehat-ch is in'position will engage with the downwardly extending flange 4 of the ring 2, so that when the hatch 1s pressed upwardly into position, said engaging parts will effect a liquid proof seal entirely about the aperture.

The reference numeral 10 indicates a shaft which extends through the hatch and is journalled in the bearing blocks 11 and 12, fa tened upon either side of the hatch as by means of the bolts 13; the intermediate part of said shaft being provided with an integrally formed collar 14, which collar is located in the bearing blocks 11 and 12; the engagement of this collar with said blocks preventing an endwise movement of the shaft.

The bearing block 12 is also provided with a stuffing box 15 so that the passage of liquid between the bearing blocks and shafts may be prevented. The upper end of the shaft 10 is threaded as at 16, and receives a threaded member 17, which member-is provided witha plurality of radially disposed ears 18, to which are pivoted at 19 the links 20. Each of the links 20 is connected with a locking member or bolt 21, said bolts being guided in apertures provided in upstanding brackets 22, fastened to the upper surface of the hatch, there being two guides provided for each bolt. The bolts 21 extend radially away from the threaded member 17., and are adapted to engage with the beveled surface 5 of the wall surrounding the aperfaces 5 and '23 will wedge the hatch tightly.

in position, as already described. The shatlt't 10 above the hatch is provided with the" operating wheel 24 and below the hatch with the operating wheel 25. Thus it will be seen that the hatch may be manipulated from both above and below.

It will further be seen that the rotation of theshaft 10 by either the handles 2 1- and 25 will cause the threaded member '17 to be raised or lowered upon the threaded part 15 of the shaft, the'movement thereof being communicated to the locking members or posts 21 by means of the links 20.

It will accordingly be seen that we have provided a construction well adapted to at tain, among others, all the aims andobjects above pointed out,'in an exceedingly simple and efficient manner, the construction being such thatthe hatch may be readily removed and locked in position; the locking means being of such construction as to provide a tight seal between the hatch" and the wall surrounding the aperture to be closed.

As many ,changes could be made in this construction without departing from the scope of the following claim, it is intended that all matter contained in the above deflanged opening, of a plate provided with a compressible packing ring arranged to engage the flangeof said opening, the said plate having an opening, a shaft passing through the said opening-in the plate and having a collar located in said opening, bearing blocks attached to :the plate on either side of the said opening to retain said collar in the opening,said shaft passing movably through the said bearing blocks, means on either side of the plate for revolving the shaft, one end portion of said shaft being threaded, a member engaging thethreaded portion of the said shaft, bolts having wedge-shaped ends engaging the edge oi the opening in the wall, and links pivotally connecting the said member and bolts.

In testimony whereof we affix our signatures in the presence of two witnesses.

JOSEPH L. SILVERMAN. JOHN W. SHIELDS. Witnesses:

EMMA WnrNBnne, IRVING A. HAMER. 

